{"changes":[{"companyHref":"/c/growthbook-io","date":"2026-09-24","documentUrl":"https://www.ycombinator.com/companies/growthbook","domain":"growthbook.io","fact":"provenance:description","name":"GrowthBook","new":{"publisher":"Y Combinator","status":"sourced","url":"https://www.ycombinator.com/companies/growthbook"},"old":{"publisher":"growthbook.io","status":"self-reported","url":"https://growthbook.io"},"publisher":"Y Combinator","reason":null,"retrievedAt":"2026-09-17","slug":"growthbook-io","status":"sourced","url":"https://whoraisedwhat.com/c/growthbook-io"},{"companyHref":"/c/growthbook-io","date":"2026-09-24","documentUrl":"https://www.ycombinator.com/companies/growthbook","domain":"growthbook.io","fact":"provenance:existence","name":"GrowthBook","new":{"publisher":"Y Combinator","status":"sourced","url":"https://www.ycombinator.com/companies/growthbook"},"old":{"publisher":"growthbook.io","status":"self-reported","url":"https://growthbook.io"},"publisher":"Y Combinator","reason":null,"retrievedAt":"2026-09-17","slug":"growthbook-io","status":"sourced","url":"https://whoraisedwhat.com/c/growthbook-io"}],"country":"US","description":"Open source feature flagging and A/B testing","domain":"growthbook.io","employees":null,"founded":2021,"fundingTotalQuarantined":false,"githubOrg":"growthbook","githubStars":7880,"industry":"b2b","investors":["yc"],"lat":37.444329,"lng":-122.159847,"location":"Palo Alto","name":"GrowthBook","rounds":[{"amountQuarantined":false,"amountUsd":5000000,"currency":"USD","date":"2024-01-15","investors":["yc"],"leadInvestor":"yc","source":{"fact":"round","publisher":"yc","retrievedAt":"2026-05-07","status":"attributed","url":null},"status":"attributed","type":"series-a","url":null}],"slug":"growthbook-io","sources":[{"fact":"round","publisher":"yc","retrievedAt":"2026-05-07","status":"attributed","url":null},{"fact":"existence","publisher":"Y Combinator","retrievedAt":"2026-09-17","status":"sourced","url":"https://www.ycombinator.com/companies/growthbook"},{"fact":"description","publisher":"Y Combinator","retrievedAt":"2026-09-17","status":"sourced","url":"https://www.ycombinator.com/companies/growthbook"}],"stage":"series-a","techStack":["Cloudflare","AitThemes","Lenis 1.3.17","Linkedin Ads","Linkedin Insight Tag","Unpkg","Google Tag Manager","jsDelivr","DoubleClick Floodlight","HubSpot","Webflow","WordPress"],"totalRaisedUsd":5000000,"updatedAt":"2026-05-07"}